itertools.repeat

Describing itertools.repeat(elem, n=None)

• The repeat function repeats an element a given number of times
• It returns an iterator of repeated elements
• The element is repeated an n number of times
• The repeat function is considered an infinite iterator

• This is because the iterator keeps repeating the element an infinite number of times by default

  • If n is specified, then it will become a finite iterator

Illustrating the repeat Function

>>> from itertools import repeat
>>> nums = repeat(2)
>>> for i in range(5): print(next(nums))
2
2
2
2
2

>>> letters = repeat('a', 3)
>>> for i in range(5): print(next(letters))
'a'
'a'
'a'
StopIteration

References

• Documentation of the Repeat Function from Itertools